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First-quarter U.S. worker productivity improved at an annual rate of 1.6% in the first quarter, twice the level originally reported, the Labor Department said Thursday.

The U.S. economy’s service sector improved last month with its highest reading in seven months but still showed contraction, the Institute for Supply Management said Wednesday.

Manufacturing in the U.S. improved last month but still showed contraction overall, the Institute for Supply Management said Monday.

A rule requiring U.S. residents to show a passport or other high-tech document to re-enter the country from Canada or Mexico took effect Monday, the Associated Press reported.

Truckers who pull refrigerated trailers into and around California have less than two months to prep for a rule that requires the small diesel engines that power older reefers to meet a state emission standard.

WASHINGTON — The Obama administration plans to have a proposal for opening the U.S.-Mexico border to longhaul trucking ready when Congress returns from its Memorial Day recess, Transportation Secretary Ray LaHood said, adding that he thought the plan could be implemented as soon as this summer.

A wave of transportation mergers and acquisitions may be on the horizon, as the recession weeds out distressed companies and carriers shop for bargains to help them secure more freight, several industry watchers said.

Active Transportation said it bought majority ownership in Jack Cooper Transport, a move that consolidates two car haulers at a time when auto industry sales are at the lowest level since 1981.